V25 
CHB150 SERIES 
75 TO 150 WATT WIDE INPUT 
DC-DC  CONVERTERS 
 
SINGLE OUTPUT 
 
FEATURES 
 
* 75 - 150W Isolated Output  
* Efficiency to 89% 
* 500KHz Switching Frequency 
* 2 : 1 Input Range 
* Regulated Outputs 
* Continuous Short Circuit Protection 
* Five-Sided Metal Case 
* Half-Brick size meet industrial standard 
* CE Mark Meets 2004/108/EC 
 
* UL60950-1 Approval 
* Without Tantalum Capacitor inside  
(V2.X Only, with    Label) 
 
 
OUTPUT CURRENT INPUT CURRENT 
MODEL INPUT OUTPUT  
Capacitor 
Load max. 
NUMBER VOLTAGE VOLTAGE 
EFF. 
MIN. MAX. NO LOAD FULL LOAD 
CHB150-48S25 36-75 VDC 2.5 VDC 0mA 30A 25 mA 2A 77 30000uF 
CHB150-48S33 36-75 VDC 3.3 VDC 30A 25 mA 2.5A 82 30000uF 
0mA 
CHB150-48S05 36-75 VDC 5 VDC 0mA 30A 25 mA 3.6A 86 30000uF 
CHB150-48S12 36-75 VDC 12 VDC 12.5A 25 mA 3.5A 89 12500uF 
0mA 
CHB150-48S15 36-75 VDC 15 VDC 10A 25 mA 3.5A 89 10000uF 
0mA 
CHB150-48S24 36-75 VDC 24 VDC 6.25A 25 mA 3.5A 89 62500uF 
0mA 
NOTE: 1. Nominal Input Voltage 48VDC 
  
1 V25 
SPECIFICATIONS 
All Specifications Typical At Nominal Line, Full Load, and 25 Unless Otherwise Noted 
INPUT SPECIFICATIONS:  GENRAL SPECIFICATIONS: 
 
Input Voltage Range ......................... 48V.................. 36-75V Efficiency ..................................................................... See Table 
Input Surge Voltage (100ms max.) . 48V ......... 100Vdc max.       Is o  la t io n   V  o lt a g e   . .................... Input/Output ...... 1500VDC min. 
 
Undervoltage lockout ... 48Vin power up . 34V Input/Case .. 1500VDC min. 
48Vin power down .... 32.5V  Output/Case ... 1500VDC min. 
7 
Positive Logic Remote ON/OFF (note 3 & 4)  Isolation Resistance .................................................. 10 ohm min. 
 
Input Filter ...... PI Type Isolation Capacitance .... 1000pF Typ. 
 Switching Frequency ................................................... 500KHz ,Typ. 
OUTPUT SPECIFICATIONS: 
 
Voltage Accuracy: .................................................... 1% max. Operating Case Temperature ................. -40 to +100 
Transient Response:25% Step Load Change  <500u sec.  Storage Temperature ...................... -40 to +105 
 
External Trim Adj. Range . 10% Humidity .................................................... 95% RH max. Non condensing 
Ripple & Noise, 20MHz BW(note 5)  MTBF . MIL-STD-217F, GB, 25, Full Load ... 900khrs Typ. 
 
2.5V & 3.3V & 5V .. 40mV RMS, max. Thermal Shutdown, Case Temp. .... 100 Typ. 
100mV pk-pk, max.  
Dimensions ........................ 2.282.40x0.50 inches (57.9x61.012.7 mm) 
 
12V & 15V .. 60mV RMS, max. Case Material ......................................... Aluminum 
150mV pk-pk, max.  Weight  100g 
 
24V  100mV RMS, max. 
NOTE: 
240mV pk-pk, max.  1. Measured From High Line to Low Line 
 
2. Measured From Full Load to Zero Load
Temperature Coefficient ....................................... 0.03%/C  
 
Short Circuit Protection .................................... Continuous 3. Logic Compatibility . Open Collector ref to -Input 
 
Line Regulation (note 1) ................................... 0.2% max. Module ON .. Open Circuit 
 Module OFF .. < 0.8Vdc 
Load Regulation (note 2) .................................. 0.2% max. 
 
Over Voltage Protection trip Range, % Vo nom. .................. 115-140% 4. Suffix to the Model Number with Negative Logic Remote ON/OFF  
Current Limit .................... 110% ~140% Nominal Output  5. Output Ripple and Noise measured with 10uF tantalum and 1uF ceramic 
 
Start up time ...... 5ms Typ. capacitor across output 
  6. Suffix -C to the Model Number with Clear Mounting Insert (3.2mm DIA.) 
CASE HB
All Dimensions In Inches(mm)
Tolerances        Inches: X.XX= 0.02 , X.XXX= 0.010
Millimeters: X.X= 0.5 , X.XX=0.25
Mounting Inserts
BOTTOM VIEW
M3*0.5 Through 4pl.
Pin Function
+Vin
1
2 ON/OFF
3 CASE
4 -Vin
5 -Vout
-Sense
6
Trim
7
8 +Sense
+Vout
9
  
 
 
REMOTE ON/OFF CONTROL EXTERNAL OUTPUT TRIM 
 
 
+SENSE (8) +SENSE (8) 
 
 
ON/OFF (2)
 
 
TRIM DOWN
 
 
HIGH SIGNAL HERE
10K ohms
  
DISABLE OUTPUT TRIM (7) TRIM (7) 
 
 
TRIMPOT
 
 -VIN (4)
  
TRIM UP
  
  
-SENSE (6) -SENSE (6)
2